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5547 Acadiau (1980 LE1)
Classification: Main-belt Asteroid          SPK-ID: 2005547
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1236056465744775 2.2125e-08  
a 2.615623754827041 9.6409e-09 au
q 2.292317889416082 5.7073e-08 au
i 12.71958074009466 4.9596e-07 deg
node 240.5409199625128 1.5872e-06 deg
peri 337.1901631817717 6.8744e-06 deg
M 239.6911774500205 9.9727e-06 deg
tp 2459716.864422701346
(2022-May-17.36442270)
4.4545e-05 TDB
period 1545.11687698764
4.23
8.5427e-06
2.339e-08
d
yr
n .2329920832279407 1.2882e-09 deg/d
Q 2.938929620238 1.0833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2828  
   data-arc span      14897 days (40.79 yr)  
   first obs. used      1980-06-10  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40857  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 22:20:22  

Additional Information
 Earth MOID = 1.28734 au 
 Jupiter MOID = 2.07369 au 
 T_jup = 3.362 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.50   n/a E2021B10  
diameter diameter 9.177 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.642 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Ditteon, R.; Lin, W; Sheerin, M. (2019) Minor Planet Bull. 46, 275-276.]
geometric albedo albedo 0.231   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5547 Acadiau (1980 LE1)          Discovered 1980-Jun-11 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1980 LE1 = 1984 JW = 1990 VQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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